/sys$common/syshlp/helplib.hlb FORTRAN, Error Messages, Run Time Errors, General, OPEFAI  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  NUMBER:  30

  ERROR CODE:  F

  MESSAGE TEXT:  open failure

  EXPLANATION:  An error was detected by RMS while attempting to open
  a file in an OPEN, INQUIRE, or other I/O statement.  This message
  is used when the error condition is not one of the more common
  conditions for which specific error messages are provided.